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Chemistry Test 4
| Question | Answer |
|---|---|
| How do you tell if a molecule is polar? | By drawing a Lewis diagram and one end is positive and the other negative |
| How do you tell if a molecule is non-polar? | By drawing a Lewis diagram and both ends are symmetrical |
| What is an inter molecular force? | They are found between molecules and hold substance together |
| What force is in both polar molecules and non polar? | Dispersion |
| What is a dispersion force? | A weak inter molecular force in both polar and non polar substances. It is due to the repulsion of the electrons and protons in 2 molecules |
| What is a dispersion force also known as? | London Force |
| What is a dipole-dipole force? | A force that keeps polar molecules together. These are the attraction of the positive to the negative end. |
| What are hydrogen bonds? | A stronger version of dipole-dipole forces. It is when hydrogen bonds with O, F and N. It is due to the large difference in electro negativity |
| What breaks when a compound dissolves in water? | The intermolecular forces |
| What happens to the boiling point when the intermolecular forces get stronger? | The boiling point rises because the intermolecular forces are harder to break |
| What is a solute? | A compound that dissolves into another substance |
| What is a solvent? | A solution that dissolves another compound |
Created by:
marissa1313
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